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refactor(ai): improve error handling and stop reason types

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- Add 'aborted' as a distinct stop reason separate from 'error'
- Change AssistantMessage.error to errorMessage for clarity
- Update error event to include reason field ('error' | 'aborted')
- Map provider-specific safety/refusal reasons to 'error' stop reason
- Reorganize utility functions into utils/ directory
- Rename agent.ts to agent-loop.ts for better clarity
- Fix error handling in all providers to properly distinguish abort from error
This commit is contained in:
Mario Zechner 2025-09-18 19:57:13 +02:00
parent 293a6e878d
commit 2296dc4052
22 changed files with 703 additions and 139 deletions
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18
packages/ai/src/providers/anthropic.ts
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@ -4,8 +4,6 @@ import type {
MessageCreateParamsStreaming,
MessageParam,
} from "@anthropic-ai/sdk/resources/messages.js";
import { AssistantMessageEventStream } from "../event-stream.js";
import { parseStreamingJson } from "../json-parse.js";
import { calculateCost } from "../models.js";
import type {
Api,
@ -22,7 +20,9 @@ import type {
ToolCall,
ToolResultMessage,
} from "../types.js";
import { validateToolArguments } from "../validation.js";
import { AssistantMessageEventStream } from "../utils/event-stream.js";
import { parseStreamingJson } from "../utils/json-parse.js";
import { validateToolArguments } from "../utils/validation.js";
import { transformMessages } from "./transorm-messages.js";
export interface AnthropicOptions extends StreamOptions {
@ -196,13 +196,17 @@ export const streamAnthropic: StreamFunction<"anthropic-messages"> = (
throw new Error("Request was aborted");
}
if (output.stopReason === "aborted" || output.stopReason === "error") {
throw new Error("An unkown error ocurred");
}
stream.push({ type: "done", reason: output.stopReason, message: output });
stream.end();
} catch (error) {
for (const block of output.content) delete (block as any).index;
output.stopReason = "error";
output.error = error instanceof Error ? error.message : JSON.stringify(error);
stream.push({ type: "error", error: output.error, partial: output });
output.stopReason = options?.signal?.aborted ? "aborted" : "error";
output.errorMessage = error instanceof Error ? error.message : JSON.stringify(error);
stream.push({ type: "error", reason: output.stopReason, error: output });
stream.end();
}
})();
@ -466,7 +470,7 @@ function mapStopReason(reason: Anthropic.Messages.StopReason): StopReason {
case "tool_use":
return "toolUse";
case "refusal":
return "safety";
return "error";
case "pause_turn": // Stop is good enough -> resubmit
return "stop";
case "stop_sequence":